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Crash on -[FMResultSet nextWithError:] #670

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partyspy opened this issue May 14, 2018 · 1 comment
Open

Crash on -[FMResultSet nextWithError:] #670

partyspy opened this issue May 14, 2018 · 1 comment

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@partyspy
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partyspy commented May 14, 2018 •
edited

I am using FMDatabaseQueue and I don't see any multi-thread manipulation on database here.
I'm so confused. Any help would be very much appreciated!

FMDB version 2.6.2
All thread stacktrace attached belowed

###

#27. Crashed: fmdb.<FMDatabaseQueue: 0x1d025bea0>
0  libsqlite3.dylib               0x182ecaa64 sqlite3_rekey + 62616
1  libsqlite3.dylib               0x182e5d418 sqlite3_step + 36124
2  libsqlite3.dylib               0x182e5d418 sqlite3_step + 36124
3  libsqlite3.dylib               0x182e55314 sqlite3_step + 3096
4  MyApp            0x103473a34 -[FMResultSet nextWithError:] (FMResultSet.m:161)
5  MyApp            0x103947ea4 __66-[ZHADTrackingDatabase deleteRecordInFailingTableIfExpiredByUUID:]_block_invoke (ZHADTrackingDatabase.m:209)
6  MyApp            0x103472b94 __30-[FMDatabaseQueue inDatabase:]_block_invoke (FMDatabaseQueue.m:162)
7  libdispatch.dylib              0x182310ae4 _dispatch_client_callout + 16
8  libdispatch.dylib              0x18234deb4 _dispatch_queue_barrier_sync_invoke_and_complete + 56
9  MyApp            0x103472b04 -[FMDatabaseQueue inDatabase:] (FMDatabaseQueue.m:176)
10 MyApp            0x103947dc4 -[ZHADTrackingDatabase deleteRecordInFailingTableIfExpiredByUUID:] (ZHADTrackingDatabase.m:207)
11 MyApp            0x10394422c -[ZHADFailTrackingHandler deleteModelIfExpired:] (ZHADFailTrackingHandler.m:137)
12 MyApp            0x103943668 __38-[ZHADFailTrackingHandler retryTracks]_block_invoke (ZHADFailTrackingHandler.m:85)
13 MyApp            0x1030a7aa0 __116-[AFHTTPSessionManager dataTaskWithHTTPMethod:URLString:parameters:uploadProgress:downloadProgress:success:failure:]_block_invoke.108 (AFHTTPSessionManager.m:301)
14 MyApp            0x103b7d014 __94-[ZHHTTPSessionManager dataTaskWithRequest:uploadProgress:downloadProgress:completionHandler:]_block_invoke (ZHHTTPSessionManager.m:421)
15 MyApp            0x1030ba4d8 __72-[AFURLSessionManagerTaskDelegate URLSession:task:didCompleteWithError:]_block_invoke (AFURLSessionManager.m:222)
16 libdispatch.dylib              0x182310b24 _dispatch_call_block_and_release + 24
17 libdispatch.dylib              0x182310ae4 _dispatch_client_callout + 16
18 libdispatch.dylib              0x18234f304 _dispatch_queue_serial_drain$VARIANT$armv81 + 904
19 libdispatch.dylib              0x18234fad8 _dispatch_queue_invoke$VARIANT$armv81 + 328
20 libdispatch.dylib              0x18235047c _dispatch_root_queue_drain_deferred_wlh$VARIANT$armv81 + 332
21 libdispatch.dylib              0x18235844c _dispatch_workloop_worker_thread$VARIANT$armv81 + 612
22 libsystem_pthread.dylib        0x182643e70 _pthread_wqthread + 860
23 libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

--

#0. com.apple.main-thread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  GraphicsServices               0x1848c7020 GSEventRunModal + 100
6  UIKit                          0x18c8c578c UIApplicationMain + 236
7  MyApp            0x102b72a24 main (main.m:31)
8  libdyld.dylib                  0x182375fc0 start + 4

#1. Thread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  Foundation                     0x183359674 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6  MyApp            0x1037b5648 base::MessagePumpNSRunLoop::DoRun(base::MessagePump::Delegate*) (message_pump_mac.mm:691)
7  MyApp            0x1037b46d4 base::MessagePumpCFRunLoopBase::Run(base::MessagePump::Delegate*) (message_pump_mac.mm:144)
8  MyApp            0x1037c54b8 base::MessageLoop::Run() (message_loop.cc:370)
9  MyApp            0x1037b64b0 base::RunLoop::Run() (run_loop.cc:112)
10 MyApp            0x1037a86c8 base::Thread::Run(base::RunLoop*) (thread.cc:256)
11 MyApp            0x1037a8a00 base::Thread::ThreadMain() (lock.h:45)
12 MyApp            0x1037b1bc4 base::(anonymous namespace)::ThreadFunc(void*) (platform_thread_posix.cc:73)
13 libsystem_pthread.dylib        0x182645220 _pthread_body + 272
14 libsystem_pthread.dylib        0x182645110 _pthread_body + 290
15 libsystem_pthread.dylib        0x182643b10 thread_start + 4

#2. com.apple.uikit.eventfetch-thread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  Foundation                     0x183359674 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6  Foundation                     0x18335951c -[NSRunLoop(NSRunLoop) runUntilDate:] + 148
7  UIKit                          0x18c5aa7e4 -[UIEventFetcher threadMain] + 136
8  Foundation                     0x183469efc __NSThread__start__ + 1040
9  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
10 libsystem_pthread.dylib        0x182645110 _pthread_body + 290
11 libsystem_pthread.dylib        0x182643b10 thread_start + 4

#3. com.apple.NSURLConnectionLoader
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  CFNetwork                      0x1831f24b0 -[__CoreSchedulingSetRunnable runForever] + 220
6  Foundation                     0x183469efc __NSThread__start__ + 1040
7  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
8  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
9  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#4. com.apple.CFNetwork.CustomProtocols
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  CFNetwork                      0x1831f24b0 -[__CoreSchedulingSetRunnable runForever] + 220
6  Foundation                     0x183469efc __NSThread__start__ + 1040
7  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
8  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
9  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#5. Thread
0  libsystem_kernel.dylib         0x1824a5610 __semwait_signal + 8
1  libsystem_c.dylib              0x1823be12c nanosleep + 212
2  libsystem_c.dylib              0x182426ef4 sleep + 44
3  MyApp            0x1038d9068 -[UTDCacheManager synchronizeData] (UTDCacheManager.m:133)
4  Foundation                     0x183469efc __NSThread__start__ + 1040
5  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
6  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
7  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#6. com.apple.CFSocket.private
0  libsystem_kernel.dylib         0x1824a5538 __select + 8
1  CoreFoundation                 0x1829cf378 __CFSocketManager + 644
2  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
3  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
4  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#7. AVAudioSession Notify Thread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  AVFAudio                       0x1883ca424 GenericRunLoopThread::Entry(void*) + 164
6  AVFAudio                       0x1883f4834 CAPThread::Entry(CAPThread*) + 88
7  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
8  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
9  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#8. Thread
0  libsystem_kernel.dylib         0x1824a50f4 __psynch_cvwait + 8
1  libsystem_pthread.dylib        0x18264bed8 _pthread_cond_wait$VARIANT$armv81 + 628
2  libc++.1.dylib                 0x181b5c2ec std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 96
3  JavaScriptCore                 0x18a03b430 std::__1::cv_status std::__1::condition_variable::wait_until<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > > const&) + 124
4  JavaScriptCore                 0x18a03b2e0 std::__1::cv_status std::__1::condition_variable_any::wait_until<std::__1::unique_lock<bmalloc::Mutex>, std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >(std::__1::unique_lock<bmalloc::Mutex>&, std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > > const&) + 112
5  JavaScriptCore                 0x18a03ae24 bmalloc::Scavenger::threadRunLoop() + 272
6  JavaScriptCore                 0x18a03ab60 bmalloc::Scavenger::Scavenger(std::__1::lock_guard<bmalloc::StaticMutex>&) + 10
7  JavaScriptCore                 0x18a03af7c void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (*)(bmalloc::Scavenger*), bmalloc::Scavenger*> >(void*) + 44
8  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
9  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
10 libsystem_pthread.dylib        0x182643b10 thread_start + 4

#9. WebThread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  WebCore                        0x18ab71d9c RunWebThread(void*) + 592
6  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
7  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
8  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#10. Thread
0  libsystem_kernel.dylib         0x1824a5610 __semwait_signal + 8
1  libsystem_c.dylib              0x1823be12c nanosleep + 212
2  Foundation                     0x183469214 +[NSThread sleepForTimeInterval:] + 136
3  MyApp            0x103144c58 -[LCNetworkStatistics startInBackground] (LCNetworkStatistics.m:251)
4  Foundation                     0x183469efc __NSThread__start__ + 1040
5  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
6  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
7  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#11. com.twitter.crashlytics.ios.MachExceptionServer
0  MyApp            0x1033d89dc CLSProcessRecordAllThreads + 4384803292
1  MyApp            0x1033d89dc CLSProcessRecordAllThreads + 4384803292
2  MyApp            0x1033d8898 CLSProcessRecordAllThreads + 4384802968
3  MyApp            0x1033c7d88 CLSHandler + 4384734600
4  MyApp            0x1033c2d9c CLSMachExceptionServer + 4384714140
5  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
6  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
7  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#12. com.squareup.SocketRocket.NetworkThread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  Foundation                     0x183359674 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6  MyApp            0x1037320a8 -[_SRRunLoopThread main] (SRWebSocket.m:1799)
7  Foundation                     0x183469efc __NSThread__start__ + 1040
8  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
9  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
10 libsystem_pthread.dylib        0x182643b10 thread_start + 4

#13. com.apple.CFStream.LegacyThread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  CoreFoundation                 0x1829d6074 _legacyStreamRunLoop_workThread + 268
6  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
7  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
8  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#14. com.apple.CoreMotion.MotionThread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  CoreFoundation                 0x182934b28 CFRunLoopRun + 116
6  CoreMotion                     0x187ec59dc CLStartStopAdvertisingBeacon + 231572
7  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
8  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
9  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#15. GCDAsyncSocket-CFStream
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  Foundation                     0x183359674 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6  WeChatSDK                      0x10690d888 +[WXOMTAGCDAsyncSocket cfstreamThread] + 360
7  Foundation                     0x183469efc __NSThread__start__ + 1040
8  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
9  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
10 libsystem_pthread.dylib        0x182643b10 thread_start + 4

#16. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#17. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#18. Thread
0  libsystem_pthread.dylib        0x182643b04 start_wqthread + 122

#19. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#20. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#21. Thread
0  libsystem_pthread.dylib        0x182643b04 start_wqthread + 122

#22. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#23. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#24. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#25. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#26. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#27. Crashed: fmdb.<FMDatabaseQueue: 0x1d025bea0>
0  libsqlite3.dylib               0x182ecaa64 sqlite3_rekey + 62616
1  libsqlite3.dylib               0x182e5d418 sqlite3_step + 36124
2  libsqlite3.dylib               0x182e5d418 sqlite3_step + 36124
3  libsqlite3.dylib               0x182e55314 sqlite3_step + 3096
4  MyApp            0x103473a34 -[FMResultSet nextWithError:] (FMResultSet.m:161)
5  MyApp            0x103947ea4 __66-[ZHADTrackingDatabase deleteRecordInFailingTableIfExpiredByUUID:]_block_invoke (ZHADTrackingDatabase.m:209)
6  MyApp            0x103472b94 __30-[FMDatabaseQueue inDatabase:]_block_invoke (FMDatabaseQueue.m:162)
7  libdispatch.dylib              0x182310ae4 _dispatch_client_callout + 16
8  libdispatch.dylib              0x18234deb4 _dispatch_queue_barrier_sync_invoke_and_complete + 56
9  MyApp            0x103472b04 -[FMDatabaseQueue inDatabase:] (FMDatabaseQueue.m:176)
10 MyApp            0x103947dc4 -[ZHADTrackingDatabase deleteRecordInFailingTableIfExpiredByUUID:] (ZHADTrackingDatabase.m:207)
11 MyApp            0x10394422c -[ZHADFailTrackingHandler deleteModelIfExpired:] (ZHADFailTrackingHandler.m:137)
12 MyApp            0x103943668 __38-[ZHADFailTrackingHandler retryTracks]_block_invoke (ZHADFailTrackingHandler.m:85)
13 MyApp            0x1030a7aa0 __116-[AFHTTPSessionManager dataTaskWithHTTPMethod:URLString:parameters:uploadProgress:downloadProgress:success:failure:]_block_invoke.108 (AFHTTPSessionManager.m:301)
14 MyApp            0x103b7d014 __94-[ZHHTTPSessionManager dataTaskWithRequest:uploadProgress:downloadProgress:completionHandler:]_block_invoke (ZHHTTPSessionManager.m:421)
15 MyApp            0x1030ba4d8 __72-[AFURLSessionManagerTaskDelegate URLSession:task:didCompleteWithError:]_block_invoke (AFURLSessionManager.m:222)
16 libdispatch.dylib              0x182310b24 _dispatch_call_block_and_release + 24
17 libdispatch.dylib              0x182310ae4 _dispatch_client_callout + 16
18 libdispatch.dylib              0x18234f304 _dispatch_queue_serial_drain$VARIANT$armv81 + 904
19 libdispatch.dylib              0x18234fad8 _dispatch_queue_invoke$VARIANT$armv81 + 328
20 libdispatch.dylib              0x18235047c _dispatch_root_queue_drain_deferred_wlh$VARIANT$armv81 + 332
21 libdispatch.dylib              0x18235844c _dispatch_workloop_worker_thread$VARIANT$armv81 + 612
22 libsystem_pthread.dylib        0x182643e70 _pthread_wqthread + 860
23 libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#28. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x1826440a0 _pthread_wqthread + 1420
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#29. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#30. com.apple.root.default-qos
0  libsystem_kernel.dylib         0x1824a5610 __semwait_signal + 8
1  libsystem_c.dylib              0x1823be12c nanosleep + 212
2  libsystem_c.dylib              0x182426ef4 sleep + 44
3  MyApp            0x1038d51f4 __38-[UTDOnlineConfManager syncOnlineconf]_block_invoke (UTDOnlineConfManager.m:426)
4  libdispatch.dylib              0x182310b24 _dispatch_call_block_and_release + 24
5  libdispatch.dylib              0x182310ae4 _dispatch_client_callout + 16
6  libdispatch.dylib              0x18234c528 _dispatch_queue_override_invoke$VARIANT$armv81 + 700
7  libdispatch.dylib              0x1823523a4 _dispatch_root_queue_drain + 592
8  libdispatch.dylib              0x1823520f0 _dispatch_worker_thread3 + 112
9  libsystem_pthread.dylib        0x182643fac _pthread_wqthread + 1176
10 libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#31. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#32. Thread
0  libsystem_kernel.dylib         0x182483e5c semaphore_timedwait_trap + 8
1  libdispatch.dylib              0x1823421a0 _dispatch_sema4_timedwait$VARIANT$armv81 + 60
2  libdispatch.dylib              0x182342a00 _dispatch_semaphore_wait_slow + 72
3  libdispatch.dylib              0x1823537e4 _dispatch_worker_thread + 248
4  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
5  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
6  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#33. Thread
0  libsystem_kernel.dylib         0x182483e5c semaphore_timedwait_trap + 8
1  libdispatch.dylib              0x1823421a0 _dispatch_sema4_timedwait$VARIANT$armv81 + 60
2  libdispatch.dylib              0x182342a00 _dispatch_semaphore_wait_slow + 72
3  libdispatch.dylib              0x1823537e4 _dispatch_worker_thread + 248
4  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
5  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
6  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#34. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#35. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#36. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#37. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x182643eb4 _pthread_wqthread + 928
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#38. NSOperationQueue 0x1d0a35c20 (QOS: UNSPECIFIED)
0  libsystem_kernel.dylib         0x182483e44 semaphore_wait_trap + 8
1  libdispatch.dylib              0x1823420bc _dispatch_sema4_wait$VARIANT$armv81 + 24
2  libdispatch.dylib              0x182342a38 _dispatch_semaphore_wait_slow + 128
3  MyApp            0x10320e668 -[HttpdnsRequest sendHTTPRequest:error:activatedServerIPIndex:] (HttpdnsRequest.m:296)
4  MyApp            0x10320ded8 -[HttpdnsRequest lookupHostFromServer:error:activatedServerIPIndex:] (HttpdnsRequest.m:221)
5  MyApp            0x10320370c __96-[HttpdnsRequestScheduler executeRequest:synchronously:retryCount:activatedServerIPIndex:error:]_block_invoke.260 (HttpdnsRequestScheduler.m:416)
6  Foundation                     0x183446e88 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
7  Foundation                     0x1833888d0 -[NSBlockOperation main] + 72
8  Foundation                     0x183387cac -[__NSOperationInternal _start:] + 848
9  Foundation                     0x18344876c __NSOQSchedule_f + 404
10 libdispatch.dylib              0x182310ae4 _dispatch_client_callout + 16
11 libdispatch.dylib              0x18234d7a8 _dispatch_continuation_pop$VARIANT$armv81 + 416
12 libdispatch.dylib              0x18234c180 _dispatch_async_redirect_invoke$VARIANT$armv81 + 596
13 libdispatch.dylib              0x1823523a4 _dispatch_root_queue_drain + 592
14 libdispatch.dylib              0x1823520f0 _dispatch_worker_thread3 + 112
15 libsystem_pthread.dylib        0x182643fac _pthread_wqthread + 1176
16 libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#39. Thread
0  libsystem_kernel.dylib         0x1824a5d84 __workq_kernreturn + 8
1  libsystem_pthread.dylib        0x1826440a0 _pthread_wqthread + 1420
2  libsystem_pthread.dylib        0x182643b08 start_wqthread + 4

#40. Thread
0  libsystem_kernel.dylib         0x182483e5c semaphore_timedwait_trap + 8
1  libdispatch.dylib              0x1823421a0 _dispatch_sema4_timedwait$VARIANT$armv81 + 60
2  libdispatch.dylib              0x182342a00 _dispatch_semaphore_wait_slow + 72
3  libdispatch.dylib              0x1823537e4 _dispatch_worker_thread + 248
4  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
5  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
6  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#41. Thread
0  libsystem_kernel.dylib         0x182483e5c semaphore_timedwait_trap + 8
1  libdispatch.dylib              0x1823421a0 _dispatch_sema4_timedwait$VARIANT$armv81 + 60
2  libdispatch.dylib              0x182342a00 _dispatch_semaphore_wait_slow + 72
3  libdispatch.dylib              0x1823537e4 _dispatch_worker_thread + 248
4  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
5  libsystem_pthread.dylib        0x182645110 _pthread_body + 290
6  libsystem_pthread.dylib        0x182643b10 thread_start + 4

#42. Thread
0  libsystem_kernel.dylib         0x182483e08 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x182483c80 mach_msg + 72
2  CoreFoundation                 0x1829c6e40 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1829c4908 __CFRunLoopRun + 1568
4  CoreFoundation                 0x1828e4da8 CFRunLoopRunSpecific + 552
5  Foundation                     0x183359674 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6  Foundation                     0x18335951c -[NSRunLoop(NSRunLoop) runUntilDate:] + 148
7  MyApp            0x10320e8b8 -[HttpdnsRequest networkRequestThreadEntryPoint:] (HttpdnsRequest.m:320)
8  Foundation                     0x183469efc __NSThread__start__ + 1040
9  libsystem_pthread.dylib        0x182645220 _pthread_body + 272
10 libsystem_pthread.dylib        0x182645110 _pthread_body + 290
11 libsystem_pthread.dylib        0x182643b10 thread_start + 4
@JasF
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JasF commented May 26, 2018

Hi! Read the #674 , solution exists.

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